Asana general instructions are at https://asana.com/guide/help/premium/premium-organizations#gl-saml. Unfortunately, their manual config instructions are an outdated google doc with screenshots of how to configure ADFS. Here's the info you need for Shibboleth:
- EntityID is
- Send the user's email address as the NameID using
Asana does not support encrypting assertions or responses – don't try it
- In Asana, configure the HTTP-Redirect URL as the sign-on URL
Here's metadata for Asana since they don't provide any.